Enos patten



E.PATTEN.

(No Model.)

MECHANISM.

Patented Aug. 23, 1892.

xg lli l A mow ugw QM S m UNITED STATE PATENT @rrrcn.

ENOS PATTEN, OF LYNN, MASSACHUSETTS, ASSIGNOR TO THE LYNN LASTINGMACHINE COMPANY, OF SAME PLACE.

MECHANISM.

SPECIFICATION forming part of Letters Patent No. 481,508, dated August13, 1892.

Application filed November 17, 1891. Serial No. 412,149. (No model.)

To all whom it may concern.-

Be it known that I, ENOS PATTEN, a citizen of the United States,residing at Lynn, in the county of Essex and State of Massachusetts,haveinvented certain new and useful Improvements in Mechanism, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

In certain classes of machines-as, for example, automatic pegging andlasting machines which are used in the manufacture of boots and shoes-itbecomes necessary to provide for the movement of the parts of suchmachines which shall first carry an object operated upon in a right-linedirection of a predetermined extent, so as to carry one side thereofpast the point at which it is operated upon by the tool or tools in themachine, then turn the said object one-half around, as on a pivot, atone end, and, finally, shall again move it endwise, as before, so as topresent the other side thereof to the action of the tool or toolsaforesaid.

My invention has for its object to devise mechanism whereby thismovement shall be occasioned in a simple and reliable manner.

It consistsin an improved construction and combination of partshereinafter described and having the above end in view, and it willfirst be described in connection with the accompanying drawings, andthen be particularly pointed out and defined in the claims at the closeof this specification.

In the drawings, Figure lis a view in plan of devices embodying myinvention. Fig. 2 is a view thereof in section on the line a a: inFig. 1. Figs. 3, 4:, and 5 are views of details, Fig. 4 being insection.

In the drawings, a represents an oblong gear, and b is a pinion whoseteeth engage with those of the gear. This pinion is provided in practicewith means for turning it either continuously or intermittently, asdesired. I have shown as a convenient means of operating the said piniona series of ratchetteeth 0, formed on the upper side of the pinion,pawls d in engagement with the said ratchet-teeth, a pawl-carrying arm6, pivoted concentrically with the said pinion, a lever f for operatingthe said pawl-carrying arm,

and a cam g and spring h for moving the said lever. Starting from theposition in which the parts are represented in Fig. 1, the oblong gearis intended to be moved in the direction of its length past the pinion bin consequence of the engagement of its teeth with those of the saidpinion and of the actuation of the said pinion. In order to permit ofthis endwise movement of the oblong gear, it is provided on its underside with studs a a which fit and slide in a way or channel 2', formedon the table 70, the said channel extending between the raised portionsor ribs Z on the said table. After having been moved endwise until thestud a comes opposite the axis on which the pinion 1) turns, the endwisemovement of the oblong gear changes into one of partial rotation inconsequence of the stud a being prevented from further advance and beingmade to act as a center on which the oblong gear may turn while beingfurther actuated by pinion b. In order to provide for this arrest of thestud a and to insure the proper turning of the oblong gear on the saidstud, as on a center, while the pinion b continues to retate,I providestops which are projected into the channel at the proper moment. Thesestops consist of a long wing m and an arm n, which are fixed on a shortshaft 0, mounted in lugs 19, depending from the under side of the table.On one side of the channelrl the raised portion of the table is cutawayto make room for the wing m and arm 'n. An arm q, fixed to the shaft0 or connected with the arm n, is borne against by an arm 'I' on asecond shaft 8, which latter is mounted in lugs s, depending from theunder side of the table, this shaft 3 having an arm 25, which is inengagement with a vertically-sliding gateway 1), which forms one side ofthe channel Within which the studs 0, a slide, this verticallyslidinggateway 0) being located at the end of the channel opposite to the endthereof at which the wing m is located and on the opposite side of thechannel from that on which the said wing is located, the wing beinglocated on the side thereof which is adjacent to the pinion b. Theaction of a spring 11 tends to force the sliding gateway v down and movethe wing m and arm it forward in the channel. When, however, the partsare in the position represented in Fig. 1, the stud a, holds the wingback, and since the arm n is fixed upon the same shaft 0 with the saidwing the said arm n is also held out of the channel and the studs a aare free to move longitudinally thereon. While the said wing and arm arethus held out of the channel, the sliding gate 1; is held elevated, soas to form a continuation of the side of the channel and guide theforward stud in a right line. The result of the rotation of the pinion bwill be to move the oblong gear endwise until the stud a? has beencarried beyond the end of the wing m. As soon as this occurs, the actionof the spirng u. will occasion the said wing 'm and arm n to moveforward into the channel, thereby closing the channel in front of andbehind the stud a in such manner as to prevent the said stud from eitheradvancing or retreating along the channel. Simultaneously therewith thesliding gateway o is depressed by the action of the spring 11.. Hereuponthe continued rotation of the pinion will cause the oblong gear to swingupon the stud a as a center, thereby carrying the end thereof from whichthe stud a depends around in a semicircle until it reaches the positionoccupied by the stud a in Fig. 1. Opposite to the wing m there is placeda hinged plate w, over which the stud a passesin making the movementdescribed, this plate being pressed upward by a spring a: .beneath thesame, so that its free edge shall form one side. of the channel, theside wall of the channel being here cut away. In passing over the saidhinged plate the stud a depresses the same, but the plate springs up assoon as the said stud has passed, closing the side of the channel atthis point. After it passes the said plate the stud comes in contactwith the wing m, which, as before stated, was projected by the action ofthe spring a into the channel, and as it continues its movement itpresses the said wing 'm back, the arm n moving with the said wing, soas to clear the channel, and the sliding gateo being raisedsimultaneously. The parts are now in the same positions as they occupiedat the outset, except that the oblong gear has been turned end for end.The swinging movement of the oblong gear now terminates and the gearagain moves endwise along the channel until the stud a has moved beyondthe end of the wing m, whereupon the said wing and stop n are againprojected into the channel to constitute stops for holding the said studa from advancing or retreating, the sliding gate 1) is depressed, andthe oblong gear is caused to make a second semi-revolution, this timeturning upon the stud a as a center.

The devices which I have so far described usually are employed inconnections in which the use of a gear of invariable proportions andsize would be unsatisfactory and insuflicient. Therefore in order toobviate the necessity which otherwise frequently would arise forreplacing a gear of a given length by one of a diiferent length, I makethe oblong ge'ar variable in length by constructing it in two or moreoblong sections a 11, these overlapping at their proximate ends and eachbeing toothed, as shown, entirely around three of its sides or tosubstantially this extent, these sections being adjusted upon each otheras required,in order to produce a gear having the necessary length, andbeing secured together by convenient means-as, for instance,

a screw or screws a passingthrough a slot a in one section and intothreaded holes in the other section.

I claim as my invention 1. The combination, with the driving-pinion andmeans for actuating the same, of an oblong gear having studs projectingtherefrom adjacent to the opposite extremities thereof, a table formedwith a channel in which the said studs may move lengthwise of thechannel, and spring-pressed stops against which the studs act insuccession to keep the channel clear, the said stops when projected intothe channel passing in front of and behind one of the studs to hold thegear from further endwise movementand thereby cause it to turn upon thesaid stud as on acenter, substantially as described.

2. The combination, with the driving-pinion and means for actuating thesame, of an oblong gear having studs projecting therefrom adjacent tothe opposite extremities thereof, a table formed with a channel in whichthe studs may move lengthwise of the channel,

and the spring-actuated wing m and arm n, substantially as described.

In testimony whereof I alfix my signature in presence of two witnesses.

ENOS PATTEN. Witnesses:

CHAS. M. RoLLINs, CHAS. W. PHILLIPS.

